打印出对象数组到控制台

Question

我有对象数组，我如何打印其包含到控制台?

我需要打印属性和它的值

object[] attrs;
attrs = prop.GetCustomAttributes(true);

我必须使用反射，但我不知道如何使用它。

Answer 1

您需要使用反射。下面是一个示例:

    static void Main(string[] args)
    {
        string obj1 = "a string";
        int obj2 = 12;
        DateTime obj3 = DateTime.Today;
        object[] obj_array = { obj1, obj2, obj3 };
        foreach (object obj in obj_array)
        {
            //Print value
            Console.WriteLine("Value: " + obj.ToString());
            //Print property names
            Console.WriteLine("Property Names:");
            foreach (PropertyInfo prop in obj.GetType().GetProperties())
            {
                Console.WriteLine(prop.Name);
            }
            Console.WriteLine();
        }
        Console.Read();
    }

编辑:对不起，你可能想检索对象本身的属性值。在这种情况下，下面是另一个示例:

class Program
{
    static void Main(string[] args)
    {
        MyObject myobj = new MyObject("prop1", "prop2");
        object[] obj_array = { myobj };
        foreach (object obj in obj_array)
        {
            foreach (PropertyInfo property in obj.GetType().GetProperties())
            {
                Console.WriteLine("Property Name: " + property.Name);
                Console.WriteLine("Property Value: " + property.GetValue(obj));
            }
        }
        Console.Read();
    }
}
public class MyObject
{
    public string Property1 { get; set; }
    public string Property2 { get; set; }
    public MyObject(string p1, string p2)
    {
        Property1 = p1;
        Property2 = p2;
    }
}

Answer 2

您可以尝试:Console.WriteLine( string.Join(",", attrs) );